Automatic gas-cock.



A. R. WEAVERIA AUTOMATIC GAS COCK. APPLICATION man1/1,111.30. 1914.

1,134,932, Patmed Apr.6,1915.

2 SHEETS-SHEET 1.

WITNESSES'.' IN VENTR H45 /ITTX IHE NGRRIS PETERS Co.. P1-lC7T0-LlT/lo.l WASHINGTON. D. c.

A. R. WEAVER.

AUTOMATIC GAS COCK.

APPLICATION man MAR. 3o. 1914.

Patented Apr. 6, 1915.

2 SHEETS-SHEET 2 IN VENToR -EY Mq Www.

A//S ,1777K WJTNESSES M/e/ Y ALTON R. WEAVER, OF` ALAMEDA, CALIFORNIA.

v AUTOMATIC eas-coen.

Specification of Letters Patent.

Patented Apr. e, 1915..

Applcation'fled March 30, 1914. Serial No. 828,397.

To all rwhom it may concern.'

' Be it known that LALTON R. WEAvnR, a citizen of the UnitedStates, residing in the city and county of Alameda and State of California, have invented a new and useful Improvement in Automatic Gas-Cocks, of which the following is a specification.

`My invention relates to automatic gas cocks wherein a valve is normally closed and may be held in an openposition by an eX- pansion rod in the vicinity 'of a gas jet heated by the combustion of the burning gas, and the objects of my invention are rst, to provide means for retaining a gas cock in an open position while the gas jet is burning; and second, to provide improved means for releasing' the cock and allowing the the flame.

same to close when the flame has `been eX- tinguished. n A Y,

`I accomplish the above by means ,of the device disclosed in the drawings forming a part of the present specification wherein like characters of reference are used to .designate similar parts throughout the said specification and drawings, and in which- Figure 1 is a side elevationof vthe. gas cock disclosing the position of the operating lever, when the valve vis closed, in full lines, the dotted lines indicating the position of the said operating lever when the same is held by the expansion of a rod adjacent to Fig.'V 2 is an end elevation of Fig. 1 disclosing the manner in which the .expansion rod is' held adjacent to the llame and is operatively'connected to the retaining lever which in turn holds the operating lever ina position whichwill hold the gas valve open. Fig. 3 is abroken vertical. sectional view of the gas cock with the valve closed, and Fig. 4 is a similar View disclosing the valve in an open position.

vI have provided means is extinguished by means of the device which may be described as follows: Y

Referring to the drawings, the numeral. 1 is used to designate a horizontal tubular member having an Vordinary gas cock 2 therein anda vertically disposed tubular eXtension 3, to the upper end of which is secured a gas tip 4. The lower end of the'bore 5 of the extension 3 is provided with a valve seat 6. A valve 7 is normally seated' on the seat 6 by means of a suitable spring 8, the tension ings.

t1p.4 and is ignited in theusual mannen for automaticallyl shutting ofi the supply of gas when the flame" of which may be regulated by thel plug `9 "screwed into the opening 10 of the horizontal tubular member 1.

Pivotally mounted within theime'mber 1 v is a counter shaft 1 2 to which is secured an inner lever 14, the outerendof which engages an aperturel in the valve 7. The

outer end of the counter shaft 12 is securedy to an outer lever 16, having ,an eyelet 17 `in the lend thereof so that a chainV or`suitable cord, not Vshowin-may be attached thereto.

. The outer lever 16 lies between a rib18 se` cured to the vertical eXtensionS and a retaining lever 19, pivotally secured as at 21 to the upper end of the said eXtensionB, and having aninner surface 20 parallel with the verticalrib 18 secured'to the said eXten- 'sion 3. The upper end ofthe retaining lever 19 engages the end of the expansion rod 22,

the threaded portion 23 of which'is secured,

in the upper end of an arm 26 integral with the upper end ofv extension. The eXpansion rod 22 is provided at itsouterend withv .a suitable thumb nut 2.7,by means of which the said expansion rod 22 may be turned so as to adjust the distance between the upper ends of the arm 26 andthe retaining leve'r19', The operation is as follows: The gas cock y 2 is'opened and theV outerr'lever 16 vpulled downward' to? theV position* indicated Y by dotted lines in Fig.' 1 of the drawings, which will cause the innen-lever 14'to1 unseat thel valve 7 and hold the' same unseated against the tension of thespring by-means ofthe lever 14 as indicated in Fig. 4 of the )draw- The gas will then flow through the will cause the lower end of the said retainingy lever 19 to move inward and firmly grip the lever 16 and hold the'same in the position "Y y I A indicated in the dotted linesofFig. 1 of the drawingswhich will retain thevalve7 in-an l open position as disclosed `in Fig. 4 of the drawings. If, in any manner, the flame,

which I have indicated by means of dotted vlines in Figs. 1 and2of the drawings, should be extinguished, the expansion rod`22f'will rapidly cool and contract, the said contraction decreasing the distancebetween the arm 26 and lever 19 thereby releasing the said retaining lever 19 and the outer`lever'16 which will in turn release the valve 7 when the spring 8 will return the said valve 7 to the seat 6 of the bore 5 within the extension 3 and prevent a further flow of gas.

The distance between the surface 20 of the lever 19 and the rib 18 on the extension 3 may be regulated so as to properly engage the outer lever 16 when the rod 22 is eX- panded by turning the thumb nut 27 which will increase or decrease the distance between the upper ends of the lever 19 and the arm 26, according to the direction in which the said thumb nut is turned. The expansion rod 22 is threaded as at 23 for the further purpose of'taking up any movement occasioned by wear on the several parts.

It is obvious from the foregoing that I have provided improved means whereby the iow of gas through a jet or the like will be automatically shut off when the llame is eX- tinguished.

The details of construction being so susceptible to variation, l do not wish to confine myself to the precise construction shown herein but rather to avail myself of any modification that may properly fall within the scope of my invention.

Having thus disclosed my invention what 1 claim as new and desire to secure by Letters Patent is- 1. An automatic gas cock comprising a horizontal tubular member having a vertical extension thereto; a valve seat between the horizontal and the vertical members; a valve adapted to normally engage the valve horizontal member and adapted to engage the valve and remove the same from the valve seat; a second lever secured to the lever within the horizontal member; a rib secured to the outer surface of the vertical eX- rib and an expansion rod secured above the gas jet and adapted to operate the retaining lever and rigidly secure the second mentionedlever when the said rod is expanded and to release the said lever when thev rod is contracted.

2. In an automatic gas cock, the combination of a horizontal tubular member having a vertical extension with an arm integral therewith; a valve seat between the horizonl tal and vertical members; a valve adapted to engage the valve seat; means for normally retaining the valve on the seat; a counterl shaft rotatably mounted within the horizontal member; an inner lever secured to the said shaft and adapted to engage the valve and retain the same from its seat; an outer valve secured to the said shaft; a rib secured to the outer surface of the vertical seat; a lever rotatably mounted within the extension; a retaining lever pivotally secured to the vertical extension and parallel with the rib thereon, said lever being adapted to engage the outer lever between the said retaining lever and the rib on the vertical extension; and an expansion rod secured to the arm on the extension and adapted to engage the upper end of the retaining lever and cause the lower end of the said lever to securely engage the outer lever between the said retaining lever and the rib and hold the valve from its seat when the said rod is expanded and to release the retaining lever and the outer lever when the said rod is contracted.

3. In an automatic gas cock, the combination of a horizontal tubular member having a vertical extension with an arm integral therewith; a valve seat between the horizontal and vertical members; a valve adapted to engage the valve seat; means for normally retaining the valve on the seat; a counter shaft rotatably mounted within the horizontal member; an inner lever secured to the said shaft and adapted to engage the valve and retain the same from its seat; an outer valve secured to the said shaft; a rib secured to the outer surface of the vertical extension; a retaining lever pivotally secured to the vertical extension and parallel with the rib thereon, said lever being adapted to engage the outer lever between the said retaining lever and the rib on the vertical extension; and an expansion rod secured to the arm on the extension and adapted to engage the upper end of the retaining lever and cause the lower end of the said lever to securely engage the outer lever between the said retaining lever and the rib and hold the valve from its seat when the said rod is expanded and to release the retaining lever and the outer lever when the said rod is contracted; andmeans for regulating the pressure of the valve on its seat.

4. In an automatic gas cock, the combination of a horizontal tubular member having azvertical extension with an arm integral therewith; a valve seat between the horizontal and vertical members; a valve adapted to engage the valve seat; means for normally retainingthe valve on the seat; a counter shaft rotatably mounted within the horizontal member; an inner lever secured to the said shaft and adapted to engage the valve and retain the same from its seat; an outer valve secured to the said shaft; a rib secured to the outer surface of the vertical extension; a retaining lever pivotally secured to the vertical extension and parallel with the rib thereon, said lever being adapted to engage the outer lever between the said retaining lever and the rib on the vertical extension; and an expansion rod secured to the arm on the extension and adapted to engage the upper end of the retaining lever pressure of the valve onits seat; and means sion andthe upper end of the retaining lever.

and cause the lower end of the said lever to securely engage the outer lever between the Said retaining lever and the rib and hold the valve from its seat 'when the said rod is expanded and to release the retaining lever and the outer lever whenrthe said rod is contracted; meansv for regulating the nature in the presence of two subscribing Wltnesses. Y Y 1 YALToN R. WEAVER.

Witnesses: Y v

MARGARET RICHARDSON,

for regulating the length of the expansion v JAMES F. MGCUE.'

rod between the arm on the vertical exten- Copies of this patent may be obtained for Washington, D. C.

. In witness whereof I hereunto set my sig-- ive cents eaeh, by addressing the Commissioner of Patents, 

